Home / 10,315.20-15,461.76-4,762.08

Finding the Fourth Proportional to 10,315.20, 15,461.76 and 4,762.08

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Solution

The fourth proportional to 10,315.20, 15,461.76 and 4,762.08 is: 7,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.20 : 15,461.76 = 4,762.08 : x
  2. Step 2: Convert to fraction form
    10,315.20/15,461.76 = 4,762.08/x
  3. Step 3: Cross multiply
    10,315.20x = 15,461.76 × 4,762.08
  4. Step 4: Simplify right side
    10,315.20x = 73,630,138.06
  5. Step 5: Solve for x
    x = 73,630,138.06/10,315.20
  6. Step 6: Final answer
    x = 7,138.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.